|Publication number||US6849088 B2|
|Application number||US 10/055,787|
|Publication date||1 Feb 2005|
|Filing date||7 Nov 2001|
|Priority date||30 Sep 1998|
|Also published as||US20030033002|
|Publication number||055787, 10055787, US 6849088 B2, US 6849088B2, US-B2-6849088, US6849088 B2, US6849088B2|
|Inventors||Mark Dehdashtian, Teodoro S. Jimenez, Jr.|
|Original Assignee||Edwards Lifesciences Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (60), Non-Patent Citations (6), Referenced by (106), Classifications (15), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The instant application for U.S. Letters Patent is a continuation-in-part application of U.S. patent application Ser. No. 09/204,699 filed Dec. 3, 1998, now U.S. Pat. No. 6,368,345 issued on Apr. 9, 2002, which is a Continuation-in-Part of U.S. patent application Ser. No. 09/163,580 filed Sep. 30, 1998 (abandoned), both of which are specifically incorporated herein by reference.
The instant application for U.S. Letters Patent also claims priority to Australian provisional Patent Application No. PQ 3029, filed Sep. 23, 1999, and to World Intellectual Property Organization Patent Application No. PCT/US00/26239, both of which are specifically incorporated herein by reference.
1. Field of the Invention
The present invention relates to an intraluminal device for use in the treatment of aneurysmal or stenotic disease. Particularly, the present invention relates to endovascular emplacement of structures designed to enhance a patient's vasculature, particularly those areas of a patient's vasculature that do not have sizeable branches extending therefrom.
2. Discussion of the Related Art
An aneurysm is a ballooning of the wall of an artery resulting from weakening due to disease or other condition. Left untreated, the aneurysm may rupture, resulting in severe loss of blood and potentially death. An aneurysm in the abdominal aorta is the most common form of arterial aneurysm. The abdominal aorta, which extends downward from the heart in front of and parallel to the spine, through the thorax and abdomen, and generally branches off in a plurality of side vessels, connects the ascending aorta at the heart and to the circulatory system of the trunk and lower body. Branched vessels of the aorta supply the two kidneys via oppositely-directed renal arteries. Below the renal arteries in typical human anatomy, the abdominal aorta continues to about the level of the fourth lumbar vertebrae and divides at a Y-junction into the left and right iliac arteries, which supply blood to the lower extremities.
A common location for an aortic aneurysm is in the section of aorta between the renal and iliac arteries. Without rapid surgical intervention, a rupture of the abdominal aorta is commonly fatal because of the high volume of blood flow within the aorta. Conventional surgical intervention involves penetrating the abdominal wall to the location of the aneurysm to reinforce or replace the diseased section of the aorta. Typically, a prosthetic tube graft replaces the area of, or proximal and distal zones abutting, a potential rupture portion of the aorta. Unfortunately, conventional surgical intervention has resulted in substantial morbidity rates, and at the very least a protracted recovery period. Likewise, cost and other constraints militate for a longstanding need for endovascular intervention.
In recent years, methods and devices have been developed to treat an aortic aneurysm without opening up the abdominal wall. These new techniques typically involve a catheter-carried tubular graft delivered upward from the femoral artery through the iliac artery and into the region of the aneurysm. The graft normally includes a tubular graft body supported by an expandable stent, either self-expanding or balloon-expanding. The balloon-expanding type of stent naturally requires an expansion balloon, while the self-expanding type is simply deployed from the end of a tubular sheath. Emplacement issues impact upon both known techniques.
Endovascular grafts and stented grafts are generally known to be useful in several distinct configurations. For example, it is known to use intraluminal grafts and stents of various designs for the treatment of aneurysms such as aortic aneurysms, and occlusive diseases affecting the vasculature or other vessels comprising, inter alia, the hepto-biliary and genito-urinary tracts (which are all hereinafter “vessels”). It is known to form such an intraluminal device of a sleeve in which is disposed a plurality of wire stents (see Balko A. et al (1986) Transfemoral Placement of Intraluminal Polyurethane Prosthesis for Abdominal Aortic Aneurysms, 40 Journal of Surgical Research 305-309; Mirich D. Et al. (1989) Percutaneously Placed Endovascular Grafts for Aortic Aneurysms: Feasibility Study 170(3) Radiology 1033-1037).
In the past, such devices have commonly be used in the treatment of, or to exclude aneurysms, see, e.g., U.S. Pat. Nos.: 5,782,904; 5,986,068; 6,013,092; 6,024,729; 6,045,557; 6,071,307; 6,099,558; 6,106,540; 6,110,191; 6,143,014; 6,231,563; and 6,278,079, each of which is licensed or assigned to and may be available from Edwards Lifesciences LLC (Orange County, Calif.), the instant assignee, and each of which is expressly incorporated herein by reference.
Whatever the purpose for which an intraluminal device is being used, it has the capacity to be inserted percutaneously through a distal (or proximal) and connecting vessel to that in which the device is to be used. For example, it may be inserted through the femoral artery in a catheter, where the device is intended to be used in the treatment of a lesion within the aorta. Upon release of the device from the catheter it may expand or be expanded to a desirable size, and may extend above and below the lesion thereby bridging the lesion. This method of inserting the device into the body of a patient is applicable where the invention is used in the treatment of aneurysmal disease or stenotic disease.
There are several potential problems associated with most known intraluminal devices. For instance, conventional grafts are not designed to follow the natural curvature of some vessels and may, therefore, kink if required to bridge a section of vessel that has a natural curvature. Alternatively, some graft candidates have atypical vasculature. For example, some candidates have an aorta that does not funnel blood into two iliacs. This may be caused either by a complete occlusion in one iliac, or by a variation in an individual patient's vasculature. In the past, a bifurcated graft having one leg sewn shut or otherwise removed has been used to treat aneurysms or stenotic disease in these and other non-branching vessels. However, such alteration of the bifurcated graft generally does not provide as even a flow path as is desired. Additionally, this requires an additional step on the part of the administering physician. Furthermore, it may be difficult to use such a bifurcated graft as a conversion graft, or to supplement a failed or failing graft.
Despite much work in this highly competitive field, there is still a need for a graft that is specifically designed to be used with generally straight vasculature or vessels.
In a first aspect, the present invention consists in an intraluminal device comprising a tubular body having a length, a first end and a second end, wherein the tubular body has a pre-determined, generally linear shape, the predetermined shape corresponding to the generally linear shaped portion of a vessel in which the device is to be disposed.
In one embodiment, the tubular body extends along a body lumen. In a second embodiment, the tubular body extends along the aorta. In a third embodiment, the tubular body extends along the aorta and into one iliac.
In a further embodiment, the intraluminal device is a graft for bridging an aneurysm in an artery of a patient.
In another embodiment, the tubular body may be tapered to allow for change in the diameter of the vessel in which the device is disposed.
In another embodiment, the tubular body may have variations in diameter along its length to allow for change in the diameter of the vessel in which the device is disposed.
In a still further embodiment of the invention the length of the tubular graft body is made from a single piece of material. The ends of this material may be straight, or shaped.
In a still further embodiment of the invention, the shape of the vessel or vessel portion in which the device is to be disposed may be pre-determined and the device chosen or specifically manufactured such that the shape of the device corresponds with the shape of the vessel or vessel portion. The shape of the vessel or vessel portion may, in preferred embodiments, be determined by either ultrasound, plain abdominal films or by CT scanning. In this manner, the device is custom made from imaging of the vessel or vessel portion such that it fits securely within the vessel or vessel portion.
In a second aspect, the present invention consists in an intraluminal device comprising a tubular graft body having a length, a first end and second end, and a supporting undulating wire, wherein the graft material towards at least one of the ends is scooped out or scalloped between each projecting crest of the wire. This reduces the possibility that a piece of the graft between those crests could project into the arterial lumen and partially occlude it or direct blood around the outside of the graft.
In a third aspect, the invention relates to the method for positioning an intraluminal device according to the present invention, including the steps of introducing a catheter or other delivery device into a vein, artery or other vessel in the body of a patient when the device body is in a radially compressed state; causing the intraluminal device to be moved through the catheter or other delivery device until the intraluminal device extends into the vessel from a proximal end of the catheter or other delivery device; causing or allowing the intraluminal device to expand; and withdrawing the catheter or other deliver device along with any other apparatus used to introduce the intraluminal device into the vessel.
In yet further embodiments of the invention for use in the treatment of aneurysmal disease, the wires described above may be held in place by sutures or adhesives or may be sandwiched between layers of a multi-layered tubular device body. In each of the foregoing embodiments, the wires are preferably disposed substantially within the device body. It is within the ambit of the invention, however, that the wires may alternatively be connected to, and disposed upon, the outer surface of the device body.
Likewise, supra renal fixation structures, including self-expanding barred wireforms and radiographic markers, tapers, and the teachings of applicants' expressly incorporated patents and serial numbers are contemplated as integral to the teachings of the present invention.
The intraluminal device according to this invention may be used in the treatment of aneurysms or stenotic disease. In addition to treating aortic aneurysms the device is particularly suitable for treating aneurysms of the arteries such as the renal and mesenteric arteries, the iliac artery and the subclavian artery. Further, in addition to the treatment of stenotic lesions in the peripheral vasculature, the invention may be used in the treatment of, inter alia, vessels comprising the coronary circulation. However, the application of the invention for use in the treatment of stenotic disease is not to be understood as limited to the vascular system only. To the contrary, the device may be used to treat stenotic lesions in other vessels including, but not limited to, those comprising the hepato-biliary and genito-urinary tracts.
In cases where the present invention is to be used for the treatment of stenotic disease, the wires are preferably formed of a thin biocompatible material such as Nitinol (a nickel titanium alloy, hereinafter “Nitinol”), stainless steel, tantalum, or ELGILOY (American Gage & Machine Company, Illinois, hereinafter “Elgiloy”) (a cobalt-chromium-nickel alloy). The wires may be bare or may be coated with material having an elastic property such that the coating material covers the device body in both its radially compressed and radially expanded states. In preferred embodiments of the present invention for use in the treatment of stenotic disease, the device body may be formed from other suitable biocompatible materials, selected, for best results, on the basis of the material's capacity to withstand the compressive forces of the stenotic lesion and maintain patency of the vessel throughout the life of the device.
In cases where the invention is to be used for the treatment of aneurysmal disease, the tubular device body is preferably formed of a thin, biocompatible material such as DacronŽ (E.I. du Pont de Nemours and Company, Wilmington, Del.) or polytetrafluoroethylene (PTFE) and/or combinations thereof The tube material may be crimped along its length to increase the flexibility of the device. However, uncrimped material may also be used when appropriate. In preferred embodiments of the invention for use in the treatment of aneurysmal disease, the device body may be formed from a material having a limited amount of diametric elasticity to ensure that it can be expanded into contact with the vessel wall, forming a seal between the wall of the device and the wall of the vessel such that the escape of the vessel contents into the aneurysmal sac is prevented.
In addition, in a further preferred embodiment, the device of the present invention includes a stent or a series of spaced apart stents which forms a framework which may be attached to an endoluminal graft. The framework of the device body may be circumferentially reinforced along its length by a plurality of separate, spaced-apart, malleable wires. Each of such wires can have a generally closed sinusoidal or zig-zag shape, also referred to as an “undulating” shape. The wires are preferably formed of stainless steel, another metal, or a plactic which is malleable and biocompatible. Alternatively, the wires may be made from a nickel-titanium alloy such as Nitinol, or other shape memory or heat sensitive material such that when the device is in situ within a vessel, the temperature in the vessel causes the material to take on a predetermined configuration. Such configuration may include a predetermined internal radius that is compatible with the vessel's internal radius, for example.
Each wire is preferably woven into the fabric of the device body to integrate the body and the reinforcing wires. This prevents any possibility of the wire reinforcement separating from the device body during introduction of the device, or throughout its life. If the device body is of a woven material, the wires may be interwoven with the device body by its manufacture. If the device body is not woven but is knitted or of an impervious sheet material, then the wires may be threaded through suitable holes formed in the device body. Alternatively, the stent or stents may be continuous and may be on the radially inner or the radially outer side of the graft wall. In either case, expansion of the stent or stents will cause the graft to expand and press against the wall of the vessel into which the device has been placed. In one particular embodiment of the invention, the wires are adapted such that substantially the entire periphery of the ends of the tubular body is reinforced.
The tubular stent or stents may be of the self-expandable type wherein the wires are made from a shape memory or heat sensitive material. In this embodiment, the tubular graft body is ejected from the proximal end of the catheter and into the target vessel. Once in the vessel, the tubular graft body takes on its pre-determined shape. Alternatively, the tubular graft body may be compressed within the lumen of a catheter such that upon release of the tubular graft body from the proximal end of the catheter and into the target vessel, the tubular graft body springs into its pre-determined shape. In a further embodiment, the expansion of the tubular graft body within the target vessel may be aided by way of a balloon which pushes the tubular graft body towards the wall of the target vessel when inflated.
The methods described herein for causing the expansion of the device body from a radially compressed state to a radially expanded state are by no means representative of an exhaustive list. Many alternative methods including, but not limited to, the use of electromagnetic fields and electric currents are well within the scope of the invention.
In addition to, or instead of being circumferentially reinforced, the tubular graft body may be longitudinally reinforced. In one embodiment, a longitudinally reinforcing wire may be connected to one or more circumferentially reinforcing wires. The advantage of longitudinal reinforcement is that the tubular graft body is less likely to compress along its length during placement of the tubular graft body in the target vessel. Such compression results in a concertina effect.
In as still further embodiment, the device of the invention may have a generally constant diameter along its length. Alternatively, the device may be frusta-conical in shape, with a diameter that increases or decreases along the length of the device.
In a further embodiment, the present invention consists of an intraluminal device comprising a tubular body having two ends which is capable of expanding or being expanded from a radially compressed state to a radially expanded state, and at least a plurality of engagement members being connected to or integral with a wall of the device body at a position located between the ends of the device body, the connection between the engagement member and the device body being such that the engagement member may occupy a first angular relationship with an adjoining part of the device body when the device body is radially compressed and a second and different angular relationship with an adjoining part of the device body when the device body is radially expanded. The engagement members, which are sometimes referred to as protruding portions or “crimps,” engage the wall of a vessel lumen to inhibit longitudinal movement of the device therein. The wireform crimps may include sleeves over their tail segments and wire ends extending past the sleeves, directly engaging inside surfaces of body lumens.
In cases where “mechanically-aided change” is the method for causing the engagement members to change from their first angular relationship to a second angular relationship, a balloon may be used to cause such change. Such balloon may therefore be specifically preshaped to suit the particular device with which it will be used. Alternatively, however, the balloon to be used may not require any specific manufacturing arrangements that are out of the ordinary. Where the balloon is preshaped, it may be manufactured such that when inflated it has a series of dimples, between each of which the surface of the balloon does not bulge out as far as it does where the dimples are located. The dimples may be strategically located such that they will push respective engagement members into their second angular relationship when the device is introduced into the body of a patient.
The process of “mechanically-aided change” may be induced by a screw jack or other mechanical means that is introduced through the catheter or other delivery device along with the intraluminal device.
Where “heat-aided change” is the method for causing the engagement members to change from a first angular relationship to a second angular relationship, such change does not require specific intervention by the surgeon. In that case, the engagement members, upon the invention being introduced into the body of a patient, will undergo an increase in temperature caused by placement within the body of the patient, and will consequently change their angular relationship such that they acquire a second angular relationship with an adjoining part of the device body as compared to the first. In embodiments of the invention wherein “heat-aided change” is employed, materials such as Nitinol are preferably used in the manufacture of the engagement members.
In alternate embodiments of the present invention, wherein “heat-aided change” is used to change the angular relationships of the engagement members, it is possible to infuse the device with a heated liquid just prior to, or after, placement of the device in the vessel. This obviates the need to rely on body heat alone to induce “heat-aided change” of the engagement members. For instance, the device may be placed in a vessel yet the change in the relative position of the engagement members may be actuated at a later time. Thus, if the device showed signs of moving in the vessel, it may be secured in position by infusing into the vessel a liquid at a temperature above body temperature sufficient to cause the engagement members to change into their second relative positions.
Where “spring-aided change” is the method for causing the angular relationship of the engagement members to change, particular methods for positioning the device may be employed. In preferred embodiments of the invention where “spring-aided change” is employed, the engagement members are manufactured from a material, such as stainless steel, which has the ability to “memorize” its manufactured shape. Such materials have a tendency to return to their manufactured shape following events that cause the material to be temporarily deformed. Thus, a device using “spring-aided change” to cause the engagement members to change from a first angular relationship to a second angular relationship will be manufactured such that the engagement members are initially in the second angular relationship position. In preferred embodiments of the invention where “spring-aided change” is used, the method for positioning such a device involves: introducing a catheter into a selected vessel; manually compressing the engagement members into their first angular relationship positions such that in combination with the device body the invention has the smallest possible radial diameter along its length; inserting the device with the engagement members maintained in their first angular relationship positions into the catheter; causing the device to be carried through the catheter until the device extends into the vessel from the proximal end of the catheter, thereby enabling the engagement members to “spring” back into their respective second angular relationship positions (having been released from the confines of the catheter lumen or other similar instrument which had been maintaining the engagement members in their first angular relationship positions); and withdrawing the catheter along with any other apparatus used to introduce the device into the vessel.
Where “geometry-aided change” is the method for causing the engagement members to change from a first angular relationship position to a second angular relationship position, the construction of the invention is of particular relevance. In such embodiments, there is a physical relationship between the expansion of the device body (from a radially compressed state to a radially expanded state) and the change in angular relationship of the engagement members (from a first to a second angular relationship). That is, the change in the geometry of the device body as it expands causes the engagement members to change from their first angular relationship to a second angular relationship.
As is the case with the expansion of the device body from a radially compressed state to a radially expanded state, the methods described above for causing the engagement members to change from a first angular relationship to a second angular relationship are by no means representative of an exhaustive list. Many alternative methods, including the use of electromagnetic fields and electric currents are within the scope of the present invention.
Having occupied their respective second angular relationships, the engagement members will come into contact with the vessel wall and by so doing, provide resistance to any tendency for longitudinal migration of the device body through the lumen. Since perforation of the lumen is least desirable, the device of the present invention most preferably only engages the wall without causing substantial tissue damage.
In embodiments of the invention wherein at least one of the engagement members remains within the lumen of the device body once in its second angular position, the engagement member may act as a means for engaging other instruments or devices at any state throughout the life of the invention.
In another embodiment, the device of the invention may be extended through use of a supplemental graft. In this embodiment, the device is first placed within the vessel at the desired location. A supplemental graft may then be introduced through subsidiary arteries and overlapped with the lumen of the bifurcated part of the primary graft.
In a further embodiment, the exterior surface of the graft is ‘texturized.’ Such texture may be created through the presence of floaters. The floaters are formed during the weaving process by adding fibers lying along the warp of the weave. These additional fibers are partially integrated into the weave of the graft material. That is, each additional fiber skips one or more of the perpendicular fibers by not alternatively extending over, and under, adjacent perpendicular fibers. In this manner, sections of the floater fibers are woven into, and integrated with, the graft material, and sections of the floater fibers lie along the exterior of the graft surface. The floater fibers may be positioned over the entire exterior surface of the graft or at selected locations on the graft. For example, the floaters may form ‘cuffs’ around the proximal and distal ends of the graft. Alternatively, the floaters may be placed in a geometric pattern. By way of example, and not of limitation, the floaters may be arranged in straight lines, angled lines, spaced-apart groups or patterns. The tension of each floater fiber may be selected by the manufacturer of the graft material during the weaving process. In this manner, the floaters may be loose or relatively taut against the graft surface. That is, the floaters may either loosely extend from the graft surface, or be tightly laid along the surface.
The intraluminal device according to this invention may be used in the treatment of aneurysms or stenotic disease. In addition to treating aortic aneurysms, the device is particularly suitable for treating aneurysms of the femoral artery, the popliteal artery, the thoracic segment of the aorta, visceral arteries such as the renal and mesenteric arteries, the iliac artery and the sub-clavian artery. Further, in addition to the treatment of stenotic lesions in the peripheral vasculature, the invention may be used in the treatment of, inter alia, vessels comprising the coronary circulation. The application of the invention for use in the treatment of stenotic disease is not to be understood as limited to the vascular system only, the device may be used to treat stenotic lesions in other vessels including, for example, those comprising the hepato-biliary and genito-urinary tracts.
The present invention is now described with reference to the accompanying drawings, wherein like numbers represent like portions.
The present invention provides a novel way to enhance the human vasculature, as well as other vessels, by means of grafts which have a generally linear, predetermined shape for specific applications. Unlike known systems, the instant teachings may be used to ameliorate problems in vessels having particularly difficult anatomical structures. For example, the instant invention may be used in a patient having atypical anatomy. Such a situation may arise if the patient's aorta is unusually elongated, or if the aorta does not clearly branch into the first and second iliacs. The present invention is also particularly suited for patient's having one totally occluded iliac, or for patients whose own prosthesis is failing. In the latter capacity, the present invention may be used as a conversion graft, or to supplement a failed or failing graft.
In the past, medical professionals have treated patients having a need for a graft to patch a generally straight vessel with a modified bifurcated graft. To use a bifurcated graft in such a patient, the medical professional would typically sew or otherwise close one “leg” of the graft. The present invention obviates the need for this additional step, and provides an even flow path for the blood as it passes through the graft. The present invention thus reduces the risk and incidence of thrombus formation.
As shown in
In use, the shape of the vessel into which the device is to be disposed may be imaged and the device chosen or specifically manufactured such that the shape of the graft 10 corresponds with the shape of the vessel. Imaging may be by way of ultrasound, plain abdominal films or by CT scanning. In this manner, the shape of graft 10 is selectively chosen so that the graft 10 fits securely within the vessel.
The graft 10 is equipped with a plurality of undulating, supporting exterior wireforms 21 and interior wireforms 22. These wireforms 21 and 22 may be self-expanding or balloon expandable. The wireforms may be designed such that the self-expansion occurs when the wireform is at body temperature and unconstrained. In the embodiment of the present invention having balloon-expandable wireforms, such wireforms are preferably at least partially formed of a malleable material which is initially formed in a radially compact configuration, and is plastically deformable to achieve a radially expanded configuration. The graft 10 may be designed to include only balloon-expanding or self-expanding wireforms. Alternatively, self-expanding and balloon-expanding wireforms may be both included within the same graft 10. Such use of both self-expanding and balloon-expanding wireforms may be desirable, for example, when the professional who is deploying the device wishes to set a first portion before deploying the entire graft.
As shown in the embodiment of the present invention depicted in
As shown in
In the embodiment of the present invention shown in
Such implantation of the first section 29 and second section 30 may be achieved through use of a catheter system. Such system may include one catheter configured to deploy both sections, or may include a plurality of catheters, each inserting a selected section.
In a further embodiment of the present invention, as shown in
As noted above, there are at least four preferred mechanisms whereby the protruding portions 26 may change from having a first angular relationship with an adjoining part of a wall of the device body to having a second angular relationship with an adjoining part of the wall of the device body. These are: (1) change of angular relationship effected by the physical force of an inflating balloon or other mechanical device (“mechanically-aided change”); (2) self-change following the introduction of the invention into the body of a patient, wherein a patient's body temperature causes the temperature of the engagement members to rise, thereby enabling the engagement members to change from their first angular relationship to their second angular relationship (“heat-aided change”); (3) self-change following deployment of the invention from the catheter or similar device used to introduce the invention into the body of a patient, wherein a property of the material comprising the engagement members is a “memory” of a preferred second angular relationship position, such that the engagement members may “spring” into that position upon release from the catheter or similar device (“spring-aided change”); and, (4) change of angular relationship effected by the change in the geometry of the device body as it expands from a radially compressed state to a radially expanded state (“geometry-aided change”).
Referring now to
While the foregoing is a complete description of the preferred embodiments of the invention, various alternatives, modifications, and equivalents may be used. Moreover, it will be obvious that certain other modifications may be practiced within the scope of the appended claims. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US5064435||28 Jun 1990||12 Nov 1991||Schneider (Usa) Inc.||Self-expanding prosthesis having stable axial length|
|US5122154||15 Aug 1990||16 Jun 1992||Rhodes Valentine J||Endovascular bypass graft|
|US5180362||3 Apr 1990||19 Jan 1993||Worst J G F||Gonio seton|
|US5397345||29 Dec 1993||14 Mar 1995||Endovascular Technologies, Inc.||Artificial graft and implantation method|
|US5443497||22 Nov 1993||22 Aug 1995||The Johns Hopkins University||Percutaneous prosthetic by-pass graft and method of use|
|US5489295||21 May 1993||6 Feb 1996||Endovascular Technologies, Inc.||Endovascular graft having bifurcation and apparatus and method for deploying the same|
|US5507769||18 Oct 1994||16 Apr 1996||Stentco, Inc.||Method and apparatus for forming an endoluminal bifurcated graft|
|US5522880||22 Jun 1994||4 Jun 1996||Barone; Hector D.||Method for repairing an abdominal aortic aneurysm|
|US5562726||22 Dec 1993||8 Oct 1996||Cook Incorporated||Expandable transluminal graft prosthesis for repair of aneurysm and method for implanting|
|US5562728||12 Apr 1995||8 Oct 1996||Endovascular Tech Inc||Endovascular grafting apparatus, system and method and devices for use therewith|
|US5575817||19 Aug 1994||19 Nov 1996||Martin; Eric C.||Aorto femoral bifurcation graft and method of implantation|
|US5609605||4 May 1995||11 Mar 1997||Ethicon, Inc.||Combination arterial stent|
|US5609627||4 Oct 1994||11 Mar 1997||Boston Scientific Technology, Inc.||Method for delivering a bifurcated endoluminal prosthesis|
|US5628783||12 May 1994||13 May 1997||Endovascular Technologies, Inc.||Bifurcated multicapsule intraluminal grafting system and method|
|US5628788||7 Nov 1995||13 May 1997||Corvita Corporation||Self-expanding endoluminal stent-graft|
|US5632772||13 Nov 1995||27 May 1997||Corvita Corporation||Expandable supportive branched endoluminal grafts|
|US5662675||24 Feb 1995||2 Sep 1997||Intervascular, Inc.||Delivery catheter assembly|
|US5665117||21 Mar 1996||9 Sep 1997||Rhodes; Valentine J.||Endovascular prosthesis with improved sealing means for aneurysmal arterial disease and method of use|
|US5667523||28 Apr 1995||16 Sep 1997||Impra, Inc.||Dual supported intraluminal graft|
|US5676696||3 May 1996||14 Oct 1997||Intervascular, Inc.||Modular bifurcated intraluminal grafts and methods for delivering and assembling same|
|US5676697||29 Jul 1996||14 Oct 1997||Cardiovascular Dynamics, Inc.||Two-piece, bifurcated intraluminal graft for repair of aneurysm|
|US5683449||24 Feb 1995||4 Nov 1997||Marcade; Jean Paul||Modular bifurcated intraluminal grafts and methods for delivering and assembling same|
|US5683453||18 Jan 1996||4 Nov 1997||Expandable Grafts Partnership||Apparatus for bilateral intra-aortic bypass|
|US5693088||7 Jun 1995||2 Dec 1997||Lazarus; Harrison M.||Intraluminal vascular graft|
|US5713917||18 Sep 1996||3 Feb 1998||Leonhardt; Howard J.||Apparatus and method for engrafting a blood vessel|
|US5728131||12 Jun 1995||17 Mar 1998||Endotex Interventional Systems, Inc.||Coupling device and method of use|
|US5755771||3 Nov 1995||26 May 1998||Divysio Solutions Ulc||Expandable stent and method of delivery of same|
|US5769887||17 Jan 1997||23 Jun 1998||Endotex Interventional Systems, Inc.||Delivery catheter and graft for aneurysm repair|
|US5782904 *||29 Sep 1994||21 Jul 1998||Endogad Research Pty Limited||Intraluminal graft|
|US5797949||3 Jun 1997||25 Aug 1998||Parodi; Juan C.||Method and apparatus for implanting a prosthesis within a body passageway|
|US5824037 *||3 Oct 1995||20 Oct 1998||Medtronic, Inc.||Modular intraluminal prostheses construction and methods|
|US5824039||19 Jan 1996||20 Oct 1998||Endovascular Technologies, Inc.||Endovascular graft having bifurcation and apparatus and method for deploying the same|
|US5824040||13 Mar 1996||20 Oct 1998||Medtronic, Inc.||Endoluminal prostheses and therapies for highly variable body lumens|
|US5824042||5 Apr 1996||20 Oct 1998||Medtronic, Inc.||Endoluminal prostheses having position indicating markers|
|US5824055||25 Mar 1997||20 Oct 1998||Endotex Interventional Systems, Inc.||Stent graft delivery system and methods of use|
|US5843160||1 Apr 1996||1 Dec 1998||Rhodes; Valentine J.||Prostheses for aneurysmal and/or occlusive disease at a bifurcation in a vessel, duct, or lumen|
|US5871536||7 Dec 1995||16 Feb 1999||Lazarus; Harrison M.||Intraluminal vascular graft and method|
|US5906641||11 Feb 1998||25 May 1999||Schneider (Usa) Inc||Bifurcated stent graft|
|US5968068||12 Sep 1996||19 Oct 1999||Baxter International Inc.||Endovascular delivery system|
|US6030415||28 Jan 1998||29 Feb 2000||Endovascular Technologies, Inc.||Bell-bottom modular stent-graft|
|US6071307||30 Sep 1998||6 Jun 2000||Baxter International Inc.||Endoluminal grafts having continuously curvilinear wireforms|
|US6099558||10 Nov 1996||8 Aug 2000||Edwards Lifesciences Corp.||Intraluminal grafting of a bifuricated artery|
|US6102938||17 Jun 1997||15 Aug 2000||Medtronic Inc.||Endoluminal prosthetic bifurcation shunt|
|US6193745||4 Jun 1997||27 Feb 2001||Medtronic, Inc.||Modular intraluminal prosteheses construction and methods|
|US6203568||24 Jul 1998||20 Mar 2001||Medtronic, Inc.||Endoluminal prostheses having position indicating markers|
|US6287330||25 Nov 1997||11 Sep 2001||Endovascular Technologies, Inc.||Aortoiliac grafting system and method|
|US20020123790 *||27 Sep 2001||5 Sep 2002||White Geoffrey Hamilton||Enhanced engagement member for anchoring prosthetic devices in body lumen|
|EP0686379A2||2 Jun 1995||13 Dec 1995||Cardiovascular Concepts, Inc.||Apparatus for endoluminal graft placement|
|EP0808614A2||22 May 1997||26 Nov 1997||SAMSUNG ELECTRONICS Co. Ltd.||Flexible self-expandable stent and method for making the same|
|FR2748197A1||Title not available|
|WO1995008966A1||29 Sep 1994||6 Apr 1995||White Geoffrey H||Intraluminal graft|
|WO1996011648A1||27 Sep 1995||25 Apr 1996||Stentco, Inc.||Method and apparatus for forming an endoluminal bifurcated graft|
|WO1997017910A1||11 Nov 1996||22 May 1997||Endogad Research Pty. Limited||Intraluminal grafting of a bifurcated artery|
|WO1997017911A1||11 Nov 1996||22 May 1997||Endogad Research Pty Limited||Positioning an intraluminal graft using a guidewire and a catheter therefor|
|WO1997026936A1||28 Jan 1997||31 Jul 1997||Endogad Research Pty. Limited||Directional catheter|
|WO1997026938A1||22 Jan 1997||31 Jul 1997||Endogad Research Pty. Limited||Dilator and introducer assembly|
|WO1999001073A1||2 Jul 1998||14 Jan 1999||Medtronic, Inc.||Measurement confirmation devices and methods for fluoroscopically directed surgery|
|WO1999032050A1||21 Dec 1998||1 Jul 1999||Embol-X, Inc.||Implantable cerebral protection device and methods of use|
|WO1999037242A1||26 Jan 1999||29 Jul 1999||Anson Medical Limited||Reinforced graft|
|WO2001030270A2||25 Sep 2000||3 May 2001||Edwards Lifesciences Corporation||Pre-shaped intraluminal graft|
|1||Marin, Michael L., et al, "Initial Experience with Transluminally placed Endovascular Grafts for the Treatement of Complex Vascular Lesions," Annals of Surgery, vol. 222, No. 4, pp 449-469, 1995, Lippincott-Raven Publishers.|
|2||May, James et al., "Treatment of Complex Abdominal Aortic Aneurysms by a Combination of Endoluminal and Extraluminal Aortofemoral Grafts." Journal of Vascular Surgery, vol. 19, No. 4, pp 924-933, 1994.|
|3||May, James, et al. "Endoluminal Repair of Atypical Dissecting Aneurysm of Descending Thoracic Aorta and Fusiform Aneurysm of the Abdominal Aorta." Journal of Vascular Surgery, vol. 22, No. 2, pp 167-172, 1995.|
|4||Parodi, Juan Carlos. "Endovascular Repair of Abdominal Aortic Aneurysms and other Arterial Lesions." Journal of Vascular Surgery, vol. 21 No. 4, pp 549-557, 1995.|
|5||Sanada, J. M.D., "Clinical Application of a Curved Nitinol Stent-Graft for Thoracic Aortic Aneurysms." Journal of Endovascular Therapy, vol. 10, Issue 1, pp 20-28, Feb. 2003.|
|6||White, Geoffrey H., et al, "Three-Year Experience with the White-Yu Endovascular GAD Graft for Transluminal Repair of Aortic and lilac Aneurysms." Journal of Endovascular Surgery, vol. 4, pp 124-146, 1997.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7377937 *||22 Apr 2003||27 May 2008||Medtronic Vascular, Inc.||Stent-graft assembly with elution openings|
|US7749266||27 Feb 2006||6 Jul 2010||Aortx, Inc.||Methods and devices for delivery of prosthetic heart valves and other prosthetics|
|US7763063||2 Jul 2004||27 Jul 2010||Bolton Medical, Inc.||Self-aligning stent graft delivery system, kit, and method|
|US7785341||25 Feb 2005||31 Aug 2010||Aortx, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US8007605||30 Jan 2007||30 Aug 2011||Bolton Medical, Inc.||Method of forming a non-circular stent|
|US8057396||7 May 2010||15 Nov 2011||Phoenix Biomedical, Inc.||Device for assessing a cardiac valve|
|US8062345||26 Jul 2007||22 Nov 2011||Bolton Medical, Inc.||Delivery systems for delivering and deploying stent grafts|
|US8062349||31 Jan 2007||22 Nov 2011||Bolton Medical, Inc.||Method for aligning a stent graft delivery system|
|US8070790||13 Feb 2006||6 Dec 2011||Bolton Medical, Inc.||Capture device for stent graft delivery|
|US8128692||25 Feb 2005||6 Mar 2012||Aortx, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US8142492||20 Jun 2007||27 Mar 2012||Aortx, Inc.||Prosthetic valve implantation systems|
|US8147541||27 Feb 2006||3 Apr 2012||Aortx, Inc.||Methods and devices for delivery of prosthetic heart valves and other prosthetics|
|US8177834||10 Mar 2008||15 May 2012||Cook Medical Technologies Llc||Woven fabric with shape memory element strands|
|US8187316||23 Dec 2008||29 May 2012||Cook Medical Technologies Llc||Implantable graft device having treated yarn and method for making same|
|US8292943||23 Feb 2004||23 Oct 2012||Bolton Medical, Inc.||Stent graft with longitudinal support member|
|US8308790||6 Feb 2006||13 Nov 2012||Bolton Medical, Inc.||Two-part expanding stent graft delivery system|
|US8376865||19 Jun 2007||19 Feb 2013||Cardiacmd, Inc.||Torque shaft and torque shaft drive|
|US8403981||27 Feb 2006||26 Mar 2013||CardiacMC, Inc.||Methods and devices for delivery of prosthetic heart valves and other prosthetics|
|US8430925||25 Feb 2005||30 Apr 2013||Cardiacmd, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US8449595||14 Nov 2011||28 May 2013||Bolton Medical, Inc.||Delivery systems for delivering and deploying stent grafts|
|US8449604||19 Aug 2009||28 May 2013||Micardia Corporation||Adjustable prosthetic valve implant|
|US8500792||31 Mar 2009||6 Aug 2013||Bolton Medical, Inc.||Dual capture device for stent graft delivery system and method for capturing a stent graft|
|US8500799||20 Jun 2007||6 Aug 2013||Cardiacmd, Inc.||Prosthetic heart valves, support structures and systems and methods for implanting same|
|US8574284 *||26 May 2009||5 Nov 2013||Cook Medical Technologies Llc||Low profile non-symmetrical bare alignment stents with graft|
|US8585594||24 May 2006||19 Nov 2013||Phoenix Biomedical, Inc.||Methods of assessing inner surfaces of body lumens or organs|
|US8608770||28 Jul 2010||17 Dec 2013||Cardiacmd, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US8636788||3 Aug 2012||28 Jan 2014||Bolton Medical, Inc.||Methods of implanting a prosthesis|
|US8728145||22 Dec 2011||20 May 2014||Cook Medical Technologies Llc||Low profile non-symmetrical stents and stent-grafts|
|US8728156||30 Jan 2012||20 May 2014||Cardiac MD, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US8740963||8 Jun 2006||3 Jun 2014||Bolton Medical, Inc.||Methods of implanting a prosthesis and treating an aneurysm|
|US8740966 *||19 Nov 2009||3 Jun 2014||Cook Medical Technologies Llc||Low profile non-symmetrical stent|
|US8834552||23 Dec 2008||16 Sep 2014||Cook Medical Technologies Llc||Stent graft having floating yarns|
|US8881365||27 Apr 2012||11 Nov 2014||Cook Medical Technologies Llc||Implantable graft device having treated yarn and method for making same|
|US8906081||13 Sep 2007||9 Dec 2014||W. L. Gore & Associates, Inc.||Stented vascular graft|
|US8940041||23 Apr 2012||27 Jan 2015||Cook Medical Technologies Llc||Woven fabric with shape memory element strands|
|US8998970||14 Mar 2013||7 Apr 2015||Bolton Medical, Inc.||Vascular prosthetic delivery device and method of use|
|US9101506||12 Mar 2010||11 Aug 2015||Bolton Medical, Inc.||System and method for deploying an endoluminal prosthesis at a surgical site|
|US9107744||3 Dec 2014||18 Aug 2015||W. L. Gore & Associates, Inc.||Stented vascular graft|
|US9168134||21 Dec 2011||27 Oct 2015||Cardiacmd, Inc.||Method for delivering a prosthetic heart valve with an expansion member|
|US9173755||5 Dec 2011||3 Nov 2015||Bolton Medical, Inc.||Vascular repair devices|
|US9180030 *||11 Dec 2008||10 Nov 2015||Cook Medical Technologies Llc||Low profile non-symmetrical stent|
|US9198786||1 Feb 2007||1 Dec 2015||Bolton Medical, Inc.||Lumen repair device with capture structure|
|US9220617||10 Jun 2014||29 Dec 2015||Bolton Medical, Inc.||Dual capture device for stent graft delivery system and method for capturing a stent graft|
|US9226813||14 Oct 2010||5 Jan 2016||Cook Medical Technologies Llc||Low profile non-symmetrical stent|
|US9295542||3 Dec 2014||29 Mar 2016||W. L. Gore & Associates, Inc.||Stented vascular graft|
|US9320631||31 Jan 2007||26 Apr 2016||Bolton Medical, Inc.||Aligning device for stent graft delivery system|
|US9333104||22 May 2013||10 May 2016||Bolton Medical, Inc.||Delivery systems for delivering and deploying stent grafts|
|US9345595||2 Jun 2014||24 May 2016||Cook Medical Technologies Llc||Low profile non-symmetrical stent|
|US9364314||30 Jun 2009||14 Jun 2016||Bolton Medical, Inc.||Abdominal aortic aneurysms: systems and methods of use|
|US9408734||13 Dec 2013||9 Aug 2016||Bolton Medical, Inc.||Methods of implanting a prosthesis|
|US9408735||16 Jan 2014||9 Aug 2016||Bolton Medical, Inc.||Methods of implanting a prosthesis and treating an aneurysm|
|US9427342||19 Dec 2014||30 Aug 2016||Cook Medical Technologies Llc||Woven fabric with shape memory element strands|
|US9439751||15 Mar 2013||13 Sep 2016||Bolton Medical, Inc.||Hemostasis valve and delivery systems|
|US9554929||5 Mar 2015||31 Jan 2017||Bolton Medical, Inc.||Vascular prosthetic delivery device and method of use|
|US9561124||20 Jul 2010||7 Feb 2017||Bolton Medical, Inc.||Methods of self-aligning stent grafts|
|US9655712||10 Feb 2016||23 May 2017||Bolton Medical, Inc.||Vascular repair devices|
|US9687336||6 Oct 2015||27 Jun 2017||Cook Medical Technologies Llc||Low profile non-symmetrical stent|
|US9717592||1 May 2014||1 Aug 2017||Aneumed, Inc.||Personalized aortic valve prosthesis|
|US9717611||15 Nov 2010||1 Aug 2017||Cook Medical Technologies Llc||Stent graft and introducer assembly|
|US9757263||12 Nov 2010||12 Sep 2017||Cook Medical Technologies Llc||Stent graft and introducer assembly|
|US20040215213 *||22 Apr 2003||28 Oct 2004||Medtronic Ave.||Stent-graft assembly with elution openings|
|US20050049674 *||23 Feb 2004||3 Mar 2005||Berra Humberto A.||Stent graft|
|US20050203615 *||25 Feb 2005||15 Sep 2005||Cardiacmd, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US20050203617 *||25 Feb 2005||15 Sep 2005||Cardiacmd, Inc.||Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same|
|US20050216043 *||26 Mar 2004||29 Sep 2005||Blatter Duane D||Stented end graft vessel device for anastomosis and related methods for percutaneous placement|
|US20060129224 *||6 Feb 2006||15 Jun 2006||Bolton Medical, Inc.||Two-part expanding stent graft delivery system|
|US20060188408 *||13 Feb 2006||24 Aug 2006||Bolton Medical, Inc.||Capture device for stent graft delivery|
|US20060212113 *||23 Feb 2006||21 Sep 2006||Shaolian Samuel M||Externally adjustable endovascular graft implant|
|US20060276872 *||8 Jun 2006||7 Dec 2006||Bolton Medical, Inc.||Method for implanting a prosthesis with a two-part expanding delivery system|
|US20070010780 *||27 Jun 2005||11 Jan 2007||Venkataramana Vijay||Methods of implanting an aorto-coronary sinus shunt for myocardial revascularization|
|US20070010781 *||27 Jun 2005||11 Jan 2007||Venkataramana Vijay||Implantable aorto-coronary sinus shunt for myocardial revascularization|
|US20070073387 *||1 Sep 2006||29 Mar 2007||Forster David C||Prosthetic Heart Valves, Support Structures And Systems And Methods For Implanting The Same|
|US20070135818 *||31 Jan 2007||14 Jun 2007||Bolton Medical, Inc.||Aligning device for stent graft delivery system|
|US20070135889 *||1 Feb 2007||14 Jun 2007||Bolton Medical, Inc.||Lumen repair device with capture structure|
|US20070142894 *||31 Jan 2007||21 Jun 2007||Bolton Medical, Inc.||Method for aligning a stent graft delivery system|
|US20070163668 *||30 Jan 2007||19 Jul 2007||Bolton Medical, Inc.||Method of forming a non-circular stent|
|US20070198078 *||1 Feb 2007||23 Aug 2007||Bolton Medical, Inc.||Delivery system and method for self-centering a Proximal end of a stent graft|
|US20070203560 *||27 Feb 2006||30 Aug 2007||Cardiacmd, Inc., A California Corporation||Methods and devices for delivery of prosthetic heart valves and other prosthetics|
|US20070203561 *||27 Feb 2006||30 Aug 2007||Cardiacmd, Inc. A California Corporation||Methods and devices for delivery of prosthetic heart valves and other prosthetics|
|US20070203566 *||30 Jan 2007||30 Aug 2007||Bolton Medical, Inc.||Non-circular stent|
|US20070203575 *||27 Feb 2006||30 Aug 2007||Cardiacmd, Inc., A California Corporation||Methods and devices for delivery of prosthetic heart valves and other prosthetics|
|US20080009746 *||24 May 2006||10 Jan 2008||Aortx, Inc., A California Corporation||Assessment of aortic heart valve to facilitate repair or replacement|
|US20080228028 *||10 Mar 2008||18 Sep 2008||Cook Incorporated||Woven fabric with shape memory element strands|
|US20090076587 *||13 Sep 2007||19 Mar 2009||Cully Edward H||Stented Vascular Graft|
|US20090099554 *||30 Sep 2008||16 Apr 2009||Forster David C||Elongate Flexible Torque Instruments And Methods Of Use|
|US20090132035 *||12 Sep 2008||21 May 2009||Roth Alex T||Prosthetic Heart Valves, Support Structures and Systems and Methods for Implanting the Same|
|US20090171435 *||23 Dec 2008||2 Jul 2009||Cook Incorporated||Implantable graft device having treated yarn and method for making same|
|US20090171437 *||11 Dec 2008||2 Jul 2009||Cook Incorporated||Low profile non-symmetrical stent|
|US20090171443 *||23 Dec 2008||2 Jul 2009||Cook Incorporated||Stent graft having floating yarns|
|US20090171451 *||23 Dec 2008||2 Jul 2009||Cook Incorporated||Implantable device having composite weave|
|US20090209955 *||20 Jun 2007||20 Aug 2009||Forster David C||Prosthetic valve implant site preparation techniques|
|US20090210052 *||20 Jun 2007||20 Aug 2009||Forster David C||Prosthetic heart valves, support structures and systems and methods for implanting same|
|US20090228098 *||20 Jun 2007||10 Sep 2009||Forster David C||Prosthetic valve implantation systems|
|US20090306763 *||26 May 2009||10 Dec 2009||Roeder Blayne A||Low profile non-symmetrical bare alignment stents with graft|
|US20100030318 *||31 Mar 2009||4 Feb 2010||Bolton Medical, Inc.||Dual Capture Device for Stent Graft Delivery System and Method for Capturing a Stent Graft|
|US20100161026 *||19 Nov 2009||24 Jun 2010||David Brocker||Low profile non-symmetrical stent|
|US20100185274 *||19 Aug 2009||22 Jul 2010||Micardia Corporation||Adjustable prosthetic valve implant|
|US20100217119 *||7 May 2010||26 Aug 2010||Forster David C||Assessment Of Aortic Heart Valve To Facilitate Repair Or Replacement|
|US20100234932 *||12 Mar 2010||16 Sep 2010||Bolton Medical, Inc.||System and method for deploying an endoluminal prosthesis at a surgical site|
|US20100256724 *||7 Apr 2010||7 Oct 2010||Forster David C||Prosthetic Heart Valves, Scaffolding Structures, and Systems and Methods for Implantation of Same|
|US20100256752 *||6 Sep 2007||7 Oct 2010||Forster David C||Prosthetic heart valves, support structures and systems and methods for implanting the same,|
|US20100305691 *||28 Jul 2010||2 Dec 2010||Forster David C||Prosthetic Heart Valves, Scaffolding Structures, and Systems and Methods for Implantation of Same|
|US20110082540 *||15 Nov 2010||7 Apr 2011||Forster David C||Prosthetic Heart Valves, Scaffolding Structures, and Systems and Methods for Implantation of Same|
|US20110118821 *||14 Oct 2010||19 May 2011||Cook Incorporated||Low profile non-symmetrical stent|
|US20110218607 *||20 Jul 2010||8 Sep 2011||Samuel Arbefeuille||Methods of Self-Aligning Stent Grafts|
|US20110218617 *||2 Mar 2011||8 Sep 2011||Endologix, Inc.||Endoluminal vascular prosthesis|
|U.S. Classification||623/1.36, 623/1.13|
|International Classification||A61F2/82, A61F2/06, A61F2/00|
|Cooperative Classification||A61F2250/0098, A61F2002/065, A61F2/07, A61F2/958, A61F2/954, A61F2/95, A61F2002/075, A61F2002/826, A61F2/89|
|15 Oct 2002||AS||Assignment|
Owner name: EDWARDS LIFESCIENCES, CORPORATION, CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DEHDASHTIAN, MARK;JIMENEZ, TEODORO S.;REEL/FRAME:013476/0187
Effective date: 20011129
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